1. what expression is equivalent to z+6z?
a. 5z+2z
b. 3z+7z
c. 12z-3z
d. 16z - 10z

2. which equations have 10 as a solution? circle all that apply.
a. 4g=48
b. g+16=9
c. 16-g=6
d. 54÷g=10

3. when solving for k in 40=k+12 what would your first step be?
a. subtract 12 from the left side of the equation
b. subtract 12 from the right side of the equation
c. add 12 to the right side of the equation
d. add 12 to the left side of the equation

4. a physical education teacher divides the class into teams of 5 to play floor hockey. there are a total of 4 teams. if s represents the number of students in the class which equation could be used to find the number of students in the class?

a. s÷5=4
b. 4+s=5
c. 5-s=4
d. 4s =5